Michael A. Westra

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Grand Haven, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Coil inserter for binding a stack of sheets together
- Patent number 6,036,423
- Issue date Mar 14, 2000
- Michael A. Westra
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Document trimming apparatus
- Patent number 6,012,367
- Issue date Jan 11, 2000
- The Challenge Machinery Company
- Michael A. Westra
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Document trimming apparatus
- Patent number 5,694,823
- Issue date Dec 9, 1997
- The Challenge Machinery Company
- Michael A. Westra
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Folding machine sprayer and fold plate and method of use therefore
- Patent number 5,221,402
- Issue date Jun 22, 1993
- The Challenge Machinery Company
- Michael A. Westra
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES